皮皮学，免费搜题
登录
搜题
【单选题】
When DK says 'I wish I knew the answer to that,” what he wants to mean is ______.A.
he certainly knows the answer
B.
he cannot give a confident answer for the time being
C.
he wants to find the answer later
D.
he expects others to give a definite answer
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】下肢带骨有左右侧()构成。
【简答题】经济投入的策略是 必须符合预算
【单选题】Though most people know that smoking ________ the risk of cancer, it is still hard for them to give it up. [ ]
A.
multiplies
B.
adds
C.
combines
D.
gains